In this paper, we consider a qubit in four scenarios: with drive, without drive, and in the
presence of dissipation and dephasing, to investigate the quantum violation of the Leggett …

Characterization of quantum devices received from unknown providers is a significant
primary task for any quantum information processing protocol. Self-testing protocols are …

Abstract The Leggett–Garg inequality (LGI) is used to test incompatibility between the
classical world view of macrorealism and quantum mechanics. Except for the LGI, other …

We study some aspects of the Leggett-Garg inequalities by using the operator-state
formalism for multitime processes. The process tensor in its Choi-state form, which we call …

In this paper we address the issue of the interplay between non-Markovianity and
nonclassicality of a system. We consider the action of non-Markovian environments on a …

Abstract We study Leggett–Garg inequalities (LGIs) for a two level system (TLS) undergoing
Markovian dynamics described by unital maps. We first find the analytic expression of LG …

Neutrinos, due to their weakly interacting nature, provide us with a unique opportunity to test
foundations of quantum mechanics over macroscopic distances. There has been …

We study the macroscopic realism (macrorealism) through the two-and three-time Leggett-
Garg inequalities (LGIs) in a two-interacting-qubits system. The two qubits are coupled either …

We identify different schemes to enhance the violation of Leggett-Garg inequalities in open
many-body systems. Considering a nonequilibrium archetypical setup of quantum transport …

We investigate quantum violation of macrorealism for multilevel spin systems under the
condition of coarsening of measurement times, ie, when measurement times have …